I clean the outside of our house with bleach to remove dirt and mildew, it saves painting it. Use a bottle that hooks to the water hose, you may not need a bottle full of bleach. Get the bottle from a Hardware store or where they sell plants, Lowe's may have them.
After using the bleach be sure and wash the bleach off with clean water a few minutes after applying the bleach, or you may be disappointed with the results.
Questions
Here are questions related to this page. Click "Ask a Question" if you have a question to ask about this topic.
Can I use regular bleach to clean the outside of my house? I bought a bottle of "outdoor bleach" that is hooked to the water hose. It did OK in some places, but others still have mildew. I wondered if I could fill the bottle back up with regular household bleach and use it the same way. I don't want to kill all the plants around the edge of the porch.
Please do what Deniaka recommends! Do not use household chlorine bleach as it's poisonous to the environment. It seeps into the soil and into waterways. It's poisonous to anything living including plants, pets, wild critters, children and you.